---
title: IOSurfaceRef
framework: coregraphics
role: symbol
role_heading: Class
path: coregraphics/iosurfaceref
---

# IOSurfaceRef

## Declaration

```swift
class IOSurfaceRef
```

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)

## See Also

### Structures

- [CGPSConverter](coregraphics/cgpsconverter.md)
- [CGCaptureOptions](coregraphics/cgcaptureoptions.md)
- [CGConfigureOption](coregraphics/cgconfigureoption.md)
- [CGDeviceColor](coregraphics/cgdevicecolor.md)
- [CGDisplayChangeSummaryFlags](coregraphics/cgdisplaychangesummaryflags.md)
- [CGEventFilterMask](coregraphics/cgeventfiltermask.md)
- [CGEventFlags](coregraphics/cgeventflags.md)
- [CGEventTapInformation](coregraphics/cgeventtapinformation.md)
- [CGScreenUpdateMoveDelta](coregraphics/cgscreenupdatemovedelta.md)
- [CGScreenUpdateOperation](coregraphics/cgscreenupdateoperation.md)
- [CGWindowImageOption](coregraphics/cgwindowimageoption.md)
- [CGWindowListOption](coregraphics/cgwindowlistoption.md)
- [CGColorBufferFormat](coregraphics/cgcolorbufferformat.md)
- [CGColorDataFormat](coregraphics/cgcolordataformat.md)
- [CGPDFAccessPermissions](coregraphics/cgpdfaccesspermissions.md)